CS35 2013.04
3.1.13-127 3.1.13-127Electronic Control System - ME7
DTC P0112, P0113
1. DTC Description
2. Possible Sources
3. Diagnosis Procedures
Fault Code Description Definition
P0112
Air intake temperature sensor sig-
nal voltage is too low
The air intake temperature sensor is integrated in the
engine air intake pressure and temperature sensors to
measure the temperature of the air that goes into the
engine. ECM internal pressure regulator circuit provides
5V reference voltage to terminal 2 of intake pressure and
temperature sensor wiring harness connector E12
through terminal 42 of ECM wiring harness connector
E01. The air intake temperature voltage - drop signal can
be obtained in this circuit. Place terminal 1 of intake pres-
sure temperature sensor E12 on low potential by terminal
17 of E01.
P0113
Air intake temperature sensor sig-
nal circuit voltage is too high
Fault Code Test Tactics
Setting Conditions
(Control Strategy)
Fault
P0112
Hardware or circuit
inspection
Air intake temperature is higher
than 128.25 ℃ .
• Sensor circuit fault
• Sensor fault
•ECM fault
P0113
Air intake temperature less than
-38.25 ℃
Test Conditions Details/Results/Actions
1. General inspection
A. Inspect for the following items:
• Sensor cover is damaged,vacuum pipe cracks.
• Sensor sealing is damaged
• Sensor loose or improper installation
• Sensor vacuum pipe is blocked.
Is it normal?
Y
Go to step 2.
N
Repair the fault.
2. Inspect the intake temperature sensor signal circuit
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